DPB_a127 — Hydraulic Asic Short Circuit
Full alert identifier: DPB_a127_hydraulicAsicShortCircuit
Alert description
Short circuit beteen Qx pin and MRAuC pin are detected.
Potential impact
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
Set condition
Short circuit between Qx pin and MRAuC pin, MRAuC is actuated (with Qx On) for a short time and check MRG state via MRG_on_SPI bit. If the bit is 0, the alert is logged.
Clear condition
No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DPB_a127.